Abstract
A virgin Grey Wooded soil was subjected to different tillage treatments receiving various rates of nitrogen, phosphorus and lime. In a 5-year rotation of oats followed by 4 years of hay, oat forage yields with 24-inch plowing appeared to be less than those obtained with shallower tillage treatments, but the subsequent first- and second-year hay yields were substantially higher. Nitrogen and phosphorus significantly increased oat forage yields irrespective of tillage treatment. Increases in first-year hay yields due to residual phosphorus were highly significant with 12-inch and 24-inch plowing. Second-year hay yields were significantly increased by residual phosphorus on all tillage treatments with increases being in the order 12-inch plowing and disking greater than 6-inch and 24-inch plowing. Irrespective of tillage treatment, lowest hay yields were obtained in the first year of harvest. Despite the greater saturation of the sub-surface soil with bases, lime significantly increased hay yields on plots plowed to 24 inches. Whereas the legume component of the hay mixture was initially high on plots plowed to 24 inches, in the succeeding years the percentage decreased considerably. On the other hand, legume percentage, which was initially low, increased for plots that were disked or plowed to 6 inches. Plowing to a depth of 12 inches appeared to be the most satisfactory procedure in maintaining the best hay yields with a high percentage of legumes.
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Claims 9
Claim · model-written summary
Oat forage yield appeared lower after 24-inch plowing than shallower tillage.
- Taxon
- oat
Avena sativae0 - Treatment
- 24-inch plowinge0
- Outcome
- forage yieldse0
- Direction
- lesse0
- Comparator
- shallower tillage treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oat forage yields with 24-inch plowing appeared to be less than those obtained with shallower tillage treatments”
Claim · model-written summary
First- and second-year hay yields were higher after 24-inch plowing.
Not reportedTreatmentComparator
Verbatim
e0“the subsequent first- and second-year hay yields were substantially higher.”
t0“CROP”
Claim · model-written summary
Nitrogen significantly increased oat forage yield across tillage treatments.
- Taxon
- oatAvena sativae0
- Treatment
- Nitrogene0
- Outcome
- forage yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen and phosphorus significantly increased oat forage yields irrespective of tillage treatment.”
Claim · model-written summary
Phosphorus significantly increased oat forage yield across tillage treatments.
- Taxon
- oatAvena sativae0
- Treatment
- phosphoruse0
- Outcome
- forage yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen and phosphorus significantly increased oat forage yields irrespective of tillage treatment.”
Claim · model-written summary
First-year hay harvest had the lowest yield regardless of tillage.
Verbatim
e0“Irrespective of tillage treatment, lowest hay yields were obtained in the first year of harvest.”
Claim · model-written summary
Lime significantly increased hay yield after 24-inch plowing.
- Taxon
- haye0
- Treatment
- limee0
- Outcome
- hay yieldse0
- Direction
- increasede0
- Qualifier
- plots plowed to 24 inchese0
Not reportedComparator
Verbatim
e0“lime significantly increased hay yields on plots plowed to 24 inches.”
Claim · model-written summary
Legume percentage decreased in succeeding years after 24-inch plowing.
Verbatim
e0“the legume component of the hay mixture was initially high on plots plowed to 24 inches, in the succeeding years the percentage decreased considerably.”
t0“CROP”
Claim · model-written summary
Legume percentage increased on disked or 6-inch-plowed plots.
Verbatim
e0“legume percentage, which was initially low, increased for plots that were disked or plowed to 6 inches.”
Claim · model-written summary
The authors favor 12-inch plowing for hay yield and legume percentage.
Verbatim
e0“Plowing to a depth of 12 inches appeared to be the most satisfactory procedure in maintaining the best hay yields with a high percentage of legumes.”
The same questions in other papers
phosphorus · yield · Avena sativa (oats)Results differ
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- no effect
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See all 116 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.